21080200

素因数分解:

$2^3\times 5^2\times {\mathrm{105401}}^1$

素因数の和:105417

約数の個数: 24

約数和(自身を含む): 49011930

約数和(自身を除く): 27931730

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105401, 210802, 421604, 527005, 843208, 1054010, 2108020, 2635025, 4216040, 5270050, 10540100, 21080200]

約数ペア:

[(1, 21080200), (2, 10540100), (4, 5270050), (5, 4216040), (8, 2635025), (10, 2108020), (20, 1054010), (25, 843208), (40, 527005), (50, 421604), (100, 210802), (200, 105401)]